Stovepipe-radiator.



PATBNTBD NOV. 24, 1903.

B. EDGAR STOVEPIPE RADIATOR. APPLICATION FILED NOV. 14. 1902.

. 1L I n 4 2 4 m 7 llllllllllll UNirE Iatented November 24, 1903.

BUTLER EDGAR, OF DANVILLE, PENNSYLVANIA.

STOVEPIPE-RA-DIATOR.

SPECIFICATION forming part of Letters Patent No. 745,004., dated November 24, 1903.

Application filed November Id. 1902. Serial No. 131.349. (No model.)

To (0% whom it may concern:

4 Be it known that I, BUTLER EDGAR, a citizen of the United States, residing at Danville, in the county of Montour, State of Pennsylvania, have invented certain new and useful Improvements in Stovepipe-Radiators, of which the following is a specification.

This invention relates to improvements in radiators for use on the stovepipes of stoves or furnaces for the purpose of intercepting heat which would otherwise pass up the chim ney and distributing or radiating it in the room or compartment in which the radiator is situated.

My improved radiator provides a zigzag course for the hot gases and a direct flue or by-pass to improve the draft when starting the fire. It has a large aggregate radiatingsurface composed of numerous flat walls arranged at Various angles and adapted to radiate heat in manydirections and distribute it evenly throughout the compartment.

The invention will be described in detail in connection with the accompanying drawings, in which--- Figure 1 is a rear elevation of the radiator. Fig. 2 is a side elevation. Fig. 3 is a front elevation. Fig. 4 is a front elevation with the slide raised to expose the interior of the direct-draft passage. Fig. 5 is a section 011 the line A A of Fig. 3, andFig. 6 is a transverse section through the direct-draft flue.

Referring to the drawings, the walls of the zigzag flue B are composed of front and rear rectangular plates 1, having alternating notches 2, square ends 3, and side plates at, whichare bent to conform to the edges of the front and rear plates. There are rectangular top and bottom plates which close the radiator with the exception of circular openings to which the upper and lower pipe-fittings 5 6 are connected.

A radiator constructed as above is found to be very efficient, having a large radiating-surface against which the hot gases are made to impinge at many points. The faces of the V-notches radiate up and down, while the vertical faces radiate in all directions.

I have found that the zigzag flue above described does not provide a sufficiently free draft for starting a fresh fire or for reviving the flre when it is very low. I have, therewill be thrown out.

fore, provided the direct flue O, which is preferably located outside of .the zigzag flue, as shown in the drawings. The flue 0 consists of arectangular trunk having its ends closed and having aside opening '7 at the lower end anda similar opening 8 at the upper end communicating, respectively, with the upper and lower ends of the zigzag flue. The flue O is provided with a valve or damper 9, by means of which the direct draft can be controlled or shut off. It is sometimes advisable to partially close the damper in order to permit a portion of the gases to pass through the direct flue while the balance passes through the zigzag flue, the direct flue thus forming addi tional radiating-surface. The outer side of the direct flue preferably consists in a sliding plate 10, having inturned edges which engage flanges on the sides of the flue, as shown in cross-section in Fig. 6. The slide 10 can be raised, as shown in Fig. 4, or entirely removed for the purpose of cleaning the flue.

By connecting the flue G securely at its ends to the flue B it acts to stiffen and strengthen the construction of the radiator. The inturned edges of the slide 10 by engagement with the flanges on the side walls of the flue, as shown in Fig. 6, makes a strong connection between the flue and slide and at the same time permits of easy removal of the slide.

My improved radiator can be placed on the smoke-pipe of a stove or furnace immediately above the same, or it may be placed 011 the smoke-pipe one or two floors above the stove or furnace, and thus be made to heat one or more rooms with hot gases which would otherwise be wasted. By placing one of these radiators immediately above a heating or cook stove a very much larger proportion of heat In this way a stove which might be made to heat a compartment without a radiator may be made to give the same heat with considerable less coal if the radiator be used, and a stove which is otherwise too small to heat a given compartment can be made to supply sufficient heat by thus increasing its radiating-surface.

Having described my invention, What I claim, and desire to secure by Letters Patent, 1s-

1. A stovepipe-radiator comprising a zigzag flue, and a straight flue arranged outside the zigzag flue and connected to a side wall thereof throughout its length, said straight flue being provided with lateral openings, communicating With the upper and lower ends of the zigzag flue, and with an interior valve or damper.

2. A Stovepipe-radiator comprising a zigzag radiating-flue, consisting of front and rear rectangular plates, having alternating notches in opposite edges, and side plates bent to conform to the edges of the front and rear plates to which they are secured, and a straight flue secured against the outer face of one of the notched plates and provided with openings communicating with the zigzag flue at or near its ends.

3. A stovepipe-radiatorcomprising a zigzag flue, a direct-draft flue arranged outside of and secured against one face of the zigzag flue, said directdraft flue communicating with the zigzag flue and having an outer side formed by a slide movable longitudinally of said flue.

4. A stovepipe-radiator comprising a zigzag flue, a direct-draft flue secured against one of the sides of the zigzag flue and communicating with the interior of the latterthrough openings in said wall against which it is secured, a damper in said direct-draft flue, an outer face of said direct flue being formed by a slide adapted to open said flue above and below the damper therein.

5. A stovepipe-radiator comprising a radiating-flue consisting of flat top and bottom plates each provided with a pipe connection, front and rear rectangular plates, having alternating notches in opposite edges, connecting said top and bottom plates, and side plates secured to said top and bottom plates and to said front and rear plates, a direct-draft flue consisting of a rectangular trunk secured throughout its length against one of the notched plates of the zigzag flue, said directdraft flue communicating with the zigzag flue near the top and bottom plates thereof, and a valve within the directdraft flue.

In testimony whereof I affix my signature in presence of two witnesses.

BUTLER EDGAR.

YVitnesses:

J. A. WATSON, 0. WV. CLEMENT. 

